Results 81 to 90 of about 89,415 (299)

Analysis of energy dissipation in resistive superconducting fault-current limiters for optimal power system performance [PDF]

, 2011
Fault levels in electrical distribution systems are rising due to the increasing presence of distributed generation, and this rising trend is expected to continue in the future.
Blair, Steven Macpherson, Booth, Campbell, Bright, C.G., Burt, Graeme, Singh, Nand   +4 more
core   +1 more source

Investigation of transformers for power electronic converters

IOP Conference Series: Materials Science and Engineering, 2020
Abstract A transformer is an integral part of power electronic equipment and it is usually the input stage of a high power converter. A good model of the transformer is needed to evaluate the performance parameters of power converters. This work represent 2 new methods for short-circuit test of single-phase transformers. The paper offers
openaire   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

International White Book on DER Protection : Review and Testing Procedures [PDF]

, 2011
This white book provides an insight into the issues surrounding the impact of increasing levels of DER on the generator and network protection and the resulting necessary improvements in protection testing practices.
Abdulhadi, Ibrahim Faiek, Booth, Campbell, Burt, Graeme, Coffele, Federico, Crolla, Paul, Dysko, Adam, Li, Xinyao, Schafer, Nils   +7 more
core  

Advanced Control of the dynamic voltage restorer for mitigating voltage sags in power systems [PDF]

, 2018
The paper presents a vector control with two cascaded loops to improve the properties of Dynamic Voltage Restorer (DVR) to minimize Voltage Sags on the grid.
Dung, Vo Tien, Goňo, Radomír, Leonowicz, Zbigniew, Martirano, Luigi, Trinh, Tran Duy   +4 more
core   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

THE RESEARCH ON SPECIAL ELECTRONIC POWER TRANSFORMER

Electrica, 2009
In many circumstances, three-phase AC power supply is not always the best choice for utility applications. In fact, there is a rating of three-phase to single-phase, three-phase to dual-phase and three-phase to multiphase transformers being in operation ...
Change CHEN, Chengxiong MAO, Dan WANG, Jiming LU   +3 more
doaj   +2 more sources

Topology and Control Strategy of Power Electronic Traction Transformer for High Power Vehicle

Kongzhi Yu Xinxi Jishu, 2017
With the growing requirments of size and weight of converter in rail transit, high-power vehicle power electronic traction transformer(PETT) is one option to meet the miniaturization and lightweight trend of traction and driving system in high speed ...
ZHAO Lu, GE Qiongxuan, LI Yaohua
doaj  

Toward Knowledge‐Based Workflows: A Semantic Approach to Atomistic Simulations for Mechanical and Thermodynamic Properties

Advanced Engineering Materials, EarlyView.
Knowledge‐based atomistic workflows are presented for mechanical and thermodynamic properties. By coupling modular simulations with ontology‐aligned metadata and provenance, Fe case studies on elastic behavior, defects, thermal properties, and Hall–Petch strengthening reveal how FAIR, queryable, and reusable simulation data can be generated. Mechanical
Abril Azócar Guzmán, Hoang‐Thien Luu, Sarath Menon, Tilmann Hickel, Nina Merkert, Stefan Sandfeld   +5 more
wiley   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

Advanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source